Modified source engine (2017) developed by valve and leaked in 2020. Not for commercial purporses
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//========= Copyright Valve Corporation, All rights reserved. ============//
//
// Purpose:
//
//=============================================================================//
#include "quakedef.h"
#include "logofile_shared.h"
#include "filesystem_engine.h"
#include "vtf/vtf.h"
// ------------------------------------------------------------------------------------ //
// CLogoFilename implementation.
// ------------------------------------------------------------------------------------ //
CLogoFilename::CLogoFilename( CRC32_t value, bool bInDownloadsDirectory )
{
char hex[16];
Q_binarytohex( (byte *)&value, sizeof( value ), hex, sizeof( hex ) );
if ( bInDownloadsDirectory )
{
Q_snprintf( m_Filename, sizeof( m_Filename ), "materials/decals/downloads/%s.vtf", hex );
}
else
{
Q_strncpy( m_Filename, hex, sizeof( m_Filename ) );
}
}
// ------------------------------------------------------------------------------------ //
// SVC_LogoFileData.
// ------------------------------------------------------------------------------------ //
bool SVC_LogoFileData::ReadFromBuffer( bf_read &buffer )
{
m_Data.SetSize( buffer.ReadShort() );
buffer.ReadBytes( m_Data.Base(), m_Data.Count() );
return !buffer.IsOverflowed();
}
bool SVC_LogoFileData::WriteToBuffer( bf_write &buffer )
{
buffer.WriteUBitLong( GetType(), NETMSG_TYPE_BITS );
buffer.WriteShort( m_Data.Count() );
buffer.WriteBytes( m_Data.Base(), m_Data.Count() );
return !buffer.IsOverflowed();
}
const char* SVC_LogoFileData::ToString() const
{
return "SVC_LogoFileData";
}
// ------------------------------------------------------------------------------------ //
// CLC_LogoFileData.
// ------------------------------------------------------------------------------------ //
bool CLC_LogoFileData::ReadFromBuffer( bf_read &buffer )
{
m_Data.SetSize( buffer.ReadShort() );
buffer.ReadBytes( m_Data.Base(), m_Data.Count() );
return !buffer.IsOverflowed();
}
bool CLC_LogoFileData::WriteToBuffer( bf_write &buffer )
{
buffer.WriteUBitLong( GetType(), NETMSG_TYPE_BITS );
buffer.WriteShort( m_Data.Count() );
buffer.WriteBytes( m_Data.Base(), m_Data.Count() );
return !buffer.IsOverflowed();
}
const char* CLC_LogoFileData::ToString() const
{
return "CLC_LogoFileData";
}
// ------------------------------------------------------------------------------------ //
// SVC_LogoFileCRC.
// ------------------------------------------------------------------------------------ //
bool SVC_LogoFileCRC::ReadFromBuffer( bf_read &buffer )
{
m_nLogoFileCRC = buffer.ReadLong();
return !buffer.IsOverflowed();
}
bool SVC_LogoFileCRC::WriteToBuffer( bf_write &buffer )
{
buffer.WriteUBitLong( GetType(), NETMSG_TYPE_BITS );
buffer.WriteLong( m_nLogoFileCRC );
return !buffer.IsOverflowed();
}
const char* SVC_LogoFileCRC::ToString() const
{
return "LogoFileCRC";
}
// ------------------------------------------------------------------------------------ //
// CLC_LogoFileRequest.
// ------------------------------------------------------------------------------------ //
bool CLC_LogoFileRequest::ReadFromBuffer( bf_read &buffer )
{
m_nLogoFileCRC = buffer.ReadLong();
return !buffer.IsOverflowed();
}
bool CLC_LogoFileRequest::WriteToBuffer( bf_write &buffer )
{
buffer.WriteUBitLong( GetType(), NETMSG_TYPE_BITS );
buffer.WriteLong( m_nLogoFileCRC );
return !buffer.IsOverflowed();
}
const char* CLC_LogoFileRequest::ToString() const
{
return "LogoFileRequest";
}
// ------------------------------------------------------------------------------------ //
// CLC_LogoFileRequest.
// ------------------------------------------------------------------------------------ //
bool SVC_LogoFileRequest::ReadFromBuffer( bf_read &buffer )
{
m_nLogoFileCRC = buffer.ReadLong();
return !buffer.IsOverflowed();
}
bool SVC_LogoFileRequest::WriteToBuffer( bf_write &buffer )
{
buffer.WriteUBitLong( GetType(), NETMSG_TYPE_BITS );
buffer.WriteLong( m_nLogoFileCRC );
return !buffer.IsOverflowed();
}
const char* SVC_LogoFileRequest::ToString() const
{
return "LogoFileRequest";
}
// ------------------------------------------------------------------------------------ //
// Other functions.
// ------------------------------------------------------------------------------------ //
bool LogoFile_IsValidVTFFile( const void *pData, int len )
{
CUtlBuffer buf( pData, len, CUtlBuffer::READ_ONLY );
IVTFTexture *pTex = CreateVTFTexture();
bool bUnserialized = pTex->Unserialize( buf );
DestroyVTFTexture( pTex );
return bUnserialized;
}
bool LogoFile_ReadFile( CRC32_t crcValue, CUtlVector<char> &fileData )
{
CLogoFilename filename( crcValue, true );
FileHandle_t hFile = g_pFileSystem->Open( filename.m_Filename, "rb" );
if ( hFile == FILESYSTEM_INVALID_HANDLE )
{
Warning( "LogoFile_ReadFile: can't open file '%s'.\n", filename.m_Filename );
return false;
}
fileData.SetSize( g_pFileSystem->Size( hFile ) );
int amtRead = g_pFileSystem->Read( fileData.Base(), fileData.Count(), hFile );
g_pFileSystem->Close( hFile );
if ( fileData.Count() == 0 || amtRead != fileData.Count() )
{
Warning( "LogoFile_ReadFile: error reading file '%s'.\n", filename.m_Filename );
return false;
}
// Validate it one last time.
if ( !LogoFile_IsValidVTFFile( fileData.Base(), fileData.Count() ) )
{
g_pFileSystem->RemoveFile( filename.m_Filename );
Warning( "LogoFile_ReadFile: !IsValidVTFFile for '%s'.\n", filename.m_Filename );
return false;
}
return true;
}